G05.4: Myelitis in diseases classified elsewhere
G05.4 is a billable, specific ICD-10-CM code for myelitis in diseases classified elsewhere. It is valid for submission on a claim.
Check G05.4 with the rest of the claim: free scrubberInclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Meningomyelitis in diseases classified elsewhere
Excludes1 inherited from the categories above G05.4
A category’s note binds every code beneath it.
Written on G05: Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere
- adenoviral encephalitis, myelitis and encephalomyelitis (A85.1)
- encephalitis, myelitis and encephalomyelitis (in) measles (B05.0)
- enteroviral encephalitis, myelitis and encephalomyelitis (A85.0)
- herpesviral [herpes simplex] encephalitis, myelitis and encephalomyelitis (B00.4)
- listerial encephalitis, myelitis and encephalomyelitis (A32.12)
- meningococcal encephalitis, myelitis and encephalomyelitis (A39.81)
- mumps encephalitis, myelitis and encephalomyelitis (B26.2)
- postchickenpox encephalitis, myelitis and encephalomyelitis (B01.1-)
- rubella encephalitis, myelitis and encephalomyelitis (B06.01)
- toxoplasmosis encephalitis, myelitis and encephalomyelitis (B58.2)
- zoster encephalitis, myelitis and encephalomyelitis (B02.0)
Risk adjustment
G05.4 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 182 Spinal Cord Disorders/Injuries0.478 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.
Medicare coverage
G05.4 is named in 8 Medicare coverage policies: 8 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A56551Billing and Coding: Visual Fields Testing
- A56773Billing and Coding: Neurophysiology Evoked Potentials (NEPs)
- A56799Billing and Coding: Visual Fields Testing
- A57204Billing and Coding: MRI and CT Scans of the Head and Neck
Alphabetic index entries that lead here
- Meningomyelitis›in diseases classified elsewhere
- Myelitis›in diseases classified elsewhere
Code history
Unchanged in every release from FY2024 to FY2027.